Isoxazole-5-carboxylic acid, 97%
Isoxazole-5-carboxylic acid, 97% (CAS 21169-71-1) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.
About Isoxazole-5-carboxylic acid, 97%
Researchers and plant chemists source Isoxazole-5-carboxylic acid, 97% from Zemixal for routine and specialised work. Identity at a glance (97%): CAS 21169-71-1, formula C4H3NO3 and molar mass 113.07 g/mol. Expect white to tan crystal to powder.
Typical applications
- Organic synthesis
- API synthesis
Safe handling
Literature values: melting point 144-148 °C. Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.
Standard pack sizes are 1 g, 5 g and 1 kg, and custom quantities are quoted on request. You receive a batch certificate of analysis and a 16-section SDS with each order. Request pricing online and we confirm availability, documentation and freight to your country.
Typical uses
- Organic synthesis
- API synthesis
Applications
Specifications and identifiers
| Product name | Isoxazole-5-carboxylic acid, 97% |
|---|---|
| Catalogue number | ZX-011746 |
| CAS number | 21169-71-1 |
| IUPAC name | 1,2-oxazole-5-carboxylic acid |
| Molecular formula | C4H3NO3 |
| Molar mass | 113.07 g/mol |
| Exact mass | 113.0113 |
| Purity / assay | 97% |
| Physical form | Crystalline |
| Appearance | White to tan crystal to powder |
| Melting point | 144-148 °C |
| XLogP3 | 0.2 |
| H-bond donors / acceptors | 1 / 4 |
| Topological polar surface area | 63.3 Ų |
| HS code | 29420090 |
| InChIKey | MIIQJAUWHSUTIT-UHFFFAOYSA-N |
| SMILES | C1=C(ON=C1)C(=O)O |
| PubChem CID | 2060599 |
| Synonyms | 5-isoxazolecarboxylic acid, isoxazole-5-carboxylic, isoxazole 5-carb, isoxazole 5-carboxylic acid |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 1 g | Quoted on request | |
| 5 g | Quoted on request | |
| 1 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
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